Hi,
I am trying to get 7.1 multichannel audio through HDMI with no luck. I am using a Pi4 with bookworm.
Is there any special config in ALSA or PULSE that I need to implement?
What I've noticed is that the audio card properties change depending on the DRM I am using.
If using vc4-kms-v3d, the audio decives lists as follows:If using vc4-fkms-v3d, the audio decives lists as follows:Why is there the difference in the subdevice capabilities?
Which one should I use?
With this command:Everything is mixed in 2ch (front L an R)
What else can I try?
Many thanks,
Eddy
I am trying to get 7.1 multichannel audio through HDMI with no luck. I am using a Pi4 with bookworm.
Is there any special config in ALSA or PULSE that I need to implement?
What I've noticed is that the audio card properties change depending on the DRM I am using.
If using vc4-kms-v3d, the audio decives lists as follows:
Code:
card 0: vc4hdmi0 [vc4-hdmi-0], device 0: MAI PCM i2s-hifi-0 [MAI PCM i2s-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0card 1: vc4hdmi1 [vc4-hdmi-1], device 0: MAI PCM i2s-hifi-0 [MAI PCM i2s-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0Code:
card 0: b1 [bcm2835 HDMI 1], device 0: bcm2835 HDMI 1 [bcm2835 HDMI 1] Subdevices: 3/4 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3card 0: b1 [bcm2835 HDMI 1], device 1: bcm2835 HDMI 1 [bcm2835 HDMI 1] Subdevices: 1/1 Subdevice #0: subdevice #0card 1: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones] Subdevices: 3/4 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3Which one should I use?
With this command:
Code:
speaker-test -c 8 -r 48000 -f S24_LEWhat else can I try?
Many thanks,
Eddy
Statistics: Posted by tipex — Mon Jul 29, 2024 3:59 pm — Replies 1 — Views 15